Bicycle brake block



FIG. 1 is a top plan view of a bicycle brake block showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a perspective view of the bottom side and one end thereof. 

The ornamental design for a bicycle brake block, as shown. 